Joomla CMS Content Access Restriction by Author

How to Create Joomla Content Access Restriction?

If you have website and:
You have many authors assigned to different articles.
You would like to restrict access to other author’s articles.

Submitted by Olga Shuvalova.
Cопоставлять для коментирования надо только следующие строки:

        //administrator/components/com_content/admin.content.php
 //Надо закомментировать строки 181,182,183 
 // if ( $filter_authorid > 0 ) {
 //  $where[] = "c.created_by = " . (int) $filter_authorid;
 //$cid = josGetArrayInts( 'cid' );
 //}
   После закоментированных строк надо вставить фрагмент:
  if($_SESSION['session_usertype']=="Super Administrator")
 {
 if ( $filter_authorid > 0 ) {
   $where[] = "c.created_by = " . (int) $filter_authorid;
 }
 }
 else
 {
 $cid=$_SESSION['session_user_id'];
   $where[] = "c.created_by = " . (int) $cid;
 }